I have 3 pair of these at home. On a pair of Scotty Bobs ( for Soft and Pow), Atomic TM 18 (for Carving), on my wifes Atomics. I ski Garmont Synergy and my wife T-2x. We have used these bindings for 6 seasons now.
They ski well on boiler plate to the nicest powder day. We are not big gear heads, prefering to just ski rather than obsese about all the active/ neutral arguments.
No complaints. No breakages. No issues. They just do what a binding is supposed to do.
I've also skied BD O2, G3, PIt Bull, Riva 2 and Superloops and like the R-8 the best of this sample of binders.